Hoshimachi Suisei sang the theme song for an anime movie, Trapezium. Elsewhere in vtubing, Higuchi Kaede of Nijisanji has sung the OP of 3 different TV anime, and KAF sang Tokyo Shandy Rendez-vous, the ED to the 2022 Urusei Yatsura remake. When will a hololive vtuber sing the OP or ED to a TV anime?

If any hololive vtuber sings the OP or ED for a TV anime in 2024, where at least one episode of the show with the OP/ED that they sung airs in 2024, this question resolves yes.